I was just reading Mike Donlins Wiki page to see if i could determine what his last year should be. Between his drunken episodes and acting career, and multiple comebacks, its a little convoluted. He took all of 1907 off but came back with a strong performance in 1908. He then took 3 years off before coming back again hitting over .300 for another 2 seasons as a part time player.
So i think the options are 1906, 1907, 1908, 1911, 1912.
Since he missed 1907 but had a fine year in 1908, I propose we let him play in 1907 and have that be his final year.